OBD Guide

P2002

Particulate Filter Efficiency Below Threshold Bank 1

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Illuminates
  • Noticeable increase in exhaust smoke
  • Problems starting the engine

Causes

  • DPF clogged
  • Malfunction of differential pressure sensors
  • Problems with the DPF regeneration system
  • Low fuel quality
  • Mechanical damage to the filter

How to Fix

  1. Check the condition of the particulate filter
  2. Diagnose differential pressure sensors
  3. Perform forced DPF regeneration
  4. Check the fuel injection system
  5. If necessary, replace the particulate filter

Related codes

Error P2002 by Vehicle Brand